Thanks for the update.
At this point I'm wondering, due to the black bars being added by Java, why it would even matter whether it was part of the core specification, since it should be opaque to the user since Java is a mandatory requirement.
I'll do my part and support whatever UHD Blurays come out with Folded Space tech. I can hopefully decode it on my HTPC into full-frame anamorphic so I don't need to buy a new player.
Maybe Oppo would be a good company that could decode Folded Space MFE encoded Blurays. I'm not sure what the benefit of the enhanced color scheme is, since higher bit depths and dynamic range are part of the basic UHD Bluray spec now anyway. Including, I believe, a way to encode the basic disc as rec 709 color space plus metadata that can be used to reconstruct rec 2020 or dci p3.